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Finding the Fourth Proportional to 653,840.70, 980,759.34 and 174,068.52

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Solution

The fourth proportional to 653,840.70, 980,759.34 and 174,068.52 is: 261,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,840.70 : 980,759.34 = 174,068.52 : x
  2. Step 2: Convert to fraction form
    653,840.70/980,759.34 = 174,068.52/x
  3. Step 3: Cross multiply
    653,840.70x = 980,759.34 × 174,068.52
  4. Step 4: Simplify right side
    653,840.70x = 170,719,326,789.98
  5. Step 5: Solve for x
    x = 170,719,326,789.98/653,840.70
  6. Step 6: Final answer
    x = 261,102.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.